Expert-Based Development of a Site-Specifc Standard in CO2 Sequestration Monitoring TechnologyEPA Grant Number: R834384
Title: Expert-Based Development of a Site-Specifc Standard in CO2 Sequestration Monitoring Technology
Investigators: Nicot, Jean-Philippe , Hovorka, Susan D.
Current Investigators: Nicot, Jean-Philippe , Hovorka, Susan D. , Mickler, Pat , Remington, Randy L , Sava, Diana , Sun, Alex , Yang, Changbing , Zeidouni, Mehdi
Institution: The University of Texas at Austin
EPA Project Officer: Klieforth, Barbara I
Project Period: December 1, 2009 through November 30, 2012 (Extended to November 30, 2013)
Project Amount: $899,958
RFA: Integrated Design, Modeling, and Monitoring of Geologic Sequestration of Anthropogenic Carbon Dioxide to Safeguard Sources of Drinking Water (2009) RFA Text | Recipients Lists
Research Category: Drinking Water , Water
The purpose of this project is to help regulators and operators alike in determining the most appropriate monitoring approaches and strategy for a given CO2 sequestration site. A monitoring strategy differs from a list of tools because it is designed as a dynamic process where the type of monitoring tool selected, type of test, and the frequency with which measurements are made changes depending on the results of the last set of measurements. The monitoring strategy should be tailored to the sequestration site and based on the extensive site characterization that is the main tool to ensure that CO2 is retained in zone. However, no guidance currently exists for the site operator or regulator to determine how to match the site with the technologies.
The proposed research will:
- Quantitatively evaluate potential monitoring strategies to select an array of strategies and guidelines for application to specific sites;
- Test the results of evaluation against the growing array of field measurements, gathered from past and current BEG (UT Austin Bureau of Economic Geology) test sites (Frio, SACROC (Scurry Area Canyon Reef Operators Committee), Cranfield), DOE partnership program, and elsewhere, especially abroad;
- Develop widespread consensus that these strategies are adequate when properly applied, and
- Compile a test/teaching set of cases for testing strategies and then train practitioners in applying the strategies to an array of sites.
The novel element of this project’s approach, which also involves a comprehensive literature search, consists in tapping the expert knowledge of 10-15 specialists from around the world in addition to the expertise accumulated at the BEG in the past decade. We will convene a panel of experts to a workshop in the second year of the project in which panelists will bring substantiation to all literature-based findings from real projects. The panel will also work remotely as well as through conference calls during the 3-year project.
We propose to produce (1) a series of nomographs/plots/tables or other multidimensional diagrams plotting detection limits vs. other parameters such as depth, CO2 saturation, heterogeneity, formation lithology (carbonate, clastic), etc.; and (2) a final report that could be used as a “Best Management Practices” manual for monitoring strategies. Such information will help in minimizing risk through judicious application of monitoring techniques.